This patch introduces the skip_when_empty flag to all CQL counters that
previously lacked this setting.
The skip_when_empty flag is a metric optimization that prevents
reporting on counters that have never been used. Once a counter has been
used (i.e., it holds a positive value), it will continue to be reported
consistently from that point onward.
Fixes#21046
Signed-off-by: Amnon Heiman <amnon@scylladb.com>
Closesscylladb/scylladb#21565
1f688bc670